dali_mon's Introduction

DALI MONITOR

Description

This script converts DALI codes into human readable messages. DALI is the digital addressable lighting interface as described here.

The source for the DALI code aka frames can be one of

stdin
HID class DALI / USB converter (e.g. Lunatone)

This script is based on the following standards

IEC 62386-101:2022 system components
IEC 62386-102:2022 control gear
IEC 62386-103:2022 control device
IEC 62386-105:2020 firmware transfer (not supported by USB converter)
IEC 62386-207 LED module DT6
IEC 62386-208 switching function DT7
IEC 62386-209 colour control DT8
IEC 62386-301:2017 input devices - push buttons
IEC 62386-302:2017 input devices - absolute input devices
IEC 62386-303:2017 input devices - occupancy sensor
IEC 62386-304:3017 input devices - light sensor

Further Documents

General usage
Address representation
Installation and HID-USB support
Serial port and input format
Tests

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dali_mon's Issues

udev rule not supported under archlinux

According to https://wiki.archlinux.org/title/udev#Allowing_regular_users_to_use_devices:

Ubuntu's approach is to create a plugdev group that devices are added to, but this practice is not only discouraged by the systemd developers, [2] but considered a bug when shipped in udev rules on Arch (FS#35602).

Accroding to https://wiki.archlinux.org/title/users_and_groups#User_groups the group should be uucp. Don't know if it is possible to have different groups according to the distro or to have two different rules files.

Not all bus collisions are recognized by DALI mon

While testing device address setup with compare, I noticed that dali_mon seems to miss out on some of the bus status messages. This can be reproduced by continuously sending 'compare'. a different tool (DALI monitor or even a Logic Analyser) will show collisions where dali_mon does not.

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